The 2020 NAIA Division II men's basketball tournament was the partially-completed tournament held by the NAIA to determine the national champion of men's college basketball among its Division II members in the United States and Canada for the 2019–20 basketball season.

[1] Due to the onset of the COVID-19 pandemic, only a single round of the tournament was completed before it was ultimately cancelled by the NAIA.

In turn, no champion was crowned.

The NAIA had predetermined that this would be the final edition of a separate Division II tournament, planning to consolidate its two divisional tournaments back into a single event for 2021.

The completed games of the tournament were played at the Sanford Pentagon in Sioux Falls, South Dakota.